Ments



(No Model.)

-A. L. MARINER.

TYPE WRITING MACHINE.

No. 457,088. Patented Aug. 4, 1891.

Fig.4.

UNITED STATES PATENT OFFICE."

ABBOTT L. MARINER, OF VEST MEDFORD, ASSIGNOR, BY MESNE Assist MENTS, TOTHEPOPE MANUFACTURING COMPANY, OF BOSTON, MAS- SACHUSETTS.

TYPE-WRITING MACHINE.

SPECIFICATION forming part of Letters Patent No. 457,088, dated August4, 1891.

Application filed April 3, 1888- Serial No. 269,480. (No model.)

To all whom, it may concern.-

Be it known that I, ABBOTT L. MARINER, of \Vest Medford, county ofMiddlesex, State of Massachusetts, have invented an Improvement inType-Writing Machines, of which the following description, in connectionwith the accompanying drawings, is a specification, like letters andfigures on the drawings representing like parts. i

This invention has for its object to improve the construction oftype-writing machines such as shown in United States patent of JohnBecker, No. 350,717, dated October 12, 1886, and has especial referenceto the means employed for spacing the lines.

The invention consists in the combination, with the paper-feeding roll,of two series of limiting-stops, and a spring-acting arm having aprojection adapted to co-operate with either series of stops, asdesired, said stops having two similar limiting edges or faces tothereby enable rotation of the paper-feeding roll backward and forward.The limitingstops of one series are located a different distance apartfrom the limiting-stops of the other series, so that the linesmay bearranged near to each other, or some distance apart, by utilizing one orthe other series.

Figure 1 shows in plan viewa type-writing machine embodying thisinvention; Figs. 2, 3, and 4 details of the spacing or limiting devicesfor the paper-feeding roll.

The main frame A, the guide-rod a, the index-plate B, movablelongitudinally and also adapted to rock on the guide-rod, the pivotedtype plate or segment 0, the printing-lever e,

the feed-dog g, the pivoted operating lever or barf for theprinting-lever, the paper-feeding roll a and guard or spring-actingplate a are all substantially as in the patent referred to, wherein likeletters represent like parts. In the said patent the guard a is shown asa spring-acting strip of metal resting on the paper-feeding roll,whereas it is shown herein as the spring-acting plate or guard a havinga series of comb-like teeth acting on the paper-feeding roll. In eachinstance, however, the spring action is the same.

A milled-edged nut i is fixed to the paperfeeding roll 0. the hub 5 ofwhich has two circumferential grooves 6 '7. The groove 6 is providedwith a series of sockets or recesses 8, herein shown as six in number,located equal distances apart, and the groove 7 is provided with aseries of sockets or recesses 9, herein shown as four in number, locatedequal distances apart.

A spring-acting arm 10 is attached to the main frame, its outer or freeend bearing upon the hub and entering one or the other groove 6 7. Theouter or free end of said spring-acting arm 10 is bent to form upon itsunder side a projection 12 of suitable size and shape to enter one of,the sockets S or 9. hen the arm 10 rests in the groove 6 and thepaper-feeding roll is turned, said arm has a tendency to stop themovement of the roll at each recess or socket 8, and, as herein shown,it would stop six times during a complete revolution of the roll, andwhen the arm 10 rests in the groove 7 the roll would stop four timesduring its complete revolution.

As herein shown, the limiting-stops have two limiting edges or faces,and this form of stop or check is frictional; but I do not desire tolimit my invention to such form; neither do I desire to limit myinvention to the two series of stops or checks for the roll being formedupon the hub of the nut, as it is obvious that they may be formed uponindependent disks fixed to the roll. It will thus be seen that when thearm 10 co-operates with the series of recesses 8 the paper will be movedforward at regular intervals a distance equal to the distance betweenthe said recesses S, and when the arm co-operates with the series ofrecesses 9 the paper will be moved forward at intervals equal to thedistance between the recesses 9.

I claim In a type-Writing machine, a spring-acting plate and apaper-feeding roll between which the paper is fed, the hub 5 on the rollhaving In testimony whereof I have signed my 10 grooves 6 7, each havinga series of limitingname to this specification in the presence of stops,as recesses 8 f), the recesses 8 being two subscribing witnesses;

placed nearer together than the recesses 9,

combined with the spring-acting arm 10, and ABBO'P' L. MARINER. itsprojection 12, adapted to eo-operate with one or the other series, thesaid projection \Vitnesses:

entering one of the recesses and holding the G. V. GREGORY,

r011 stationary, substantially as described. J. O. SEARS.

